Description: Shows trading posts on the Rio Grande from El Paso to Eagle Pass, Texas; companion U. S. and Mexican settlements along the river; and settlements in the trading area of the posts 80 miles into the states of Chihuahua and Coahuila in Mexico.

Description: Shows routes the U. S. troops took into Mexico on the expedition of 1916 led by General John J. Pershing. Notes the pack train and wagon train routes as well as infantry routes, and the Expedition headquarters at Dublan Mexico.

Description: Details of raid on Columbus, New Mexico on 9 March 1916 with inset plat of the town, list of "Raider's Objectives," and short summary of the U. S. Army Punitive Expedition into Mexico that followed.

Description: Shows route of the Army camel train surveying for a wagon route across the West along the 35th Parallel under the direction of Lieutenant E. F. Beale, also used to test the feasibility of using camels as military pack animals. Shows relationship to U. S. Route 66.

Description: Map of Texas/Mexico border showing line of forts from El Paso to Brownsville. Includes chart of mileages between Texas forts, listing of old forts in Texas still active in 1935, information about cavalry speeds and auxiliary units, and inset of U.S./Mexico border showing line of forts from the Pacific Ocean to the Gulf of Mexico.